【摘要】：使用兩步離子交換法制備工程應(yīng)力分布玻璃(ESP玻璃)。兩步離子交換中第一步交換時(shí)間較長(zhǎng),第二步交換時(shí)間較短。主要研究經(jīng)過(guò)不同第一步離子交換工藝制度后的ESP玻璃性能上的區(qū)別。本文對(duì)ESP玻璃測(cè)試了彎曲強(qiáng)度,顯微硬度,K+分布狀態(tài),并根據(jù)彎曲強(qiáng)度,K+分布狀態(tài)計(jì)算得出Weibull模量以及離子擴(kuò)散系數(shù)。結(jié)果表明:第二步離子交換會(huì)降低第一步離子交換玻璃的彎曲強(qiáng)度,而兩步離子交換后的ESP玻璃其Weibull模量有所升高。顯微硬度趨勢(shì)與彎曲強(qiáng)度趨勢(shì)一致。結(jié)合抗折強(qiáng)度以及K+分布狀態(tài),可知第一步離子交換最佳溫度為450℃,時(shí)間30 h;第二步離子交換最佳溫度為400℃,時(shí)間33 min。
[Abstract]:Engineering stress distribution glass (ESP glass) was prepared by two-step ion exchange method. In the two-step ion exchange, the first step exchange time is longer and the second step exchange time is shorter. The differences in the properties of ESP glasses after different first step ion exchange processes are studied. In this paper, the bending strength, microhardness and K distribution state of ESP glass are measured. According to the bending strength and K distribution state, the Weibull modulus and ion diffusion coefficient are calculated. The results show that the bending strength of the first step ion exchange glass is decreased by the second step ion exchange, while the Weibull modulus of the ESP glass after two step ion exchange is increased. The trend of microhardness is consistent with that of bending strength. Combined with the bending strength and K distribution, the optimum temperature of ion exchange in the first step is 450 鈩，

本文編號(hào)：2475592